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Clear, powerful bass from a compact sub
There's no substitute for the excitement that room-shaking explosions and rumbling stampedes add to your movie night. And to get that kind of deep, driving bass, you need a no-nonsense sub like Klipsch's SW-310. It sports a high-output 400-watt amplifier to produce tightly controlled, room-filling bass that you wouldn't expect from a sub this compact.

The strong-yet-light 10" woofer is designed for quick, precise movement. It teams up with dual 10" passive radiators to give you an extra mid-bass boost. And since it measures just over a cubic foot, it'll deliver the bass you crave without taking away from your room's décor.

Product Highlights:

400-watt RMS BASH® digital hybrid amplifier

10" front-firing woven fiberglass driver

dual 10" side-firing passive radiators

four-layer aluminum-wound voice coils for high output

frequency response 24-120 Hz (±3dB)

variable 40-150 Hz crossover

phase and gain adjustment

auto on/off

line level/LFE (low frequency effects) input

compatible with the Klipsch WA-2 wireless audio adapter kit for an easy connection to a sound system

Why add a powered subwoofer?

A powered subwoofer gives you bass you can feel as well as hear. Our customers love the depth and impact their subs add to music and movies. We hear comments like "it brings out sounds I didn't know existed in discs I've watched a million times." Powered subwoofers aren't just for big bass that rattles your picture frames; they can also deliver tight, accurate lows. If you haven't shopped for a powered sub in a while, you might be surprised at how small they get. Look for an ultra-compact model if you want to tuck your sub away under an end table or in a corner.

Power LED Indicator: Located on the powered subwoofer's front baffle,
this LED indicates the operating status of the unit's built-in amplifier. The
LED will light red when the amplifier is in standby mode and green when the
amplifier is on and receiving a signal. If the LED is dark and not lit, the
amplifier is off.

Rubber Feet: The Klipsch powered subwoofer is equipped with four
integrated rubber feet to help prevent against vibration.

Placement: Klipsch powered subwoofers are designed to reproduce deep
bass and deliver the impact that makes your movies and music come alive.
Typically, optimum performance will result if you place the subwoofer in a
corner of the room on the same wall as your front channel speakers.

Controls

Gain Control: The gain control of the Klipsch SW-310 adjusts
the subwoofer's volume relative to the rest of your home audio system. If the Klipsch powered
subwoofer is connected to the Subwoofer Output (LFE) on your AV receiver, first
set the subwoofer volume level control in the receiver to the "half-way" or the
"0-dB" position. Then increase the gain of the subwoofer until the subwoofer's
volume level matches the output of your main speakers. After this setup is
completed, the volume control of your AV receiver will be the volume control for
both the Klipsch powered subwoofer and your connected loudspeakers.

Lowpass Crossover: The Klipsch SW-310 powered subwoofer
features a variable lowpass crossover which is adjustable from 40-150Hz. The
crossover point chosen determines where low bass frequencies are "handed-off"
from your AV system's loudspeakers to the Klipsch powered subwoofer. Set the
crossover point based on the size of your systems' main left/right speakers. As
a general rule, for larger, floor-standing speakers, set the crossover point
between 50-90Hz. If using small bookshelf or satellite speakers for your mains,
set the crossover point between 90-150Hz. The smaller the speaker, the higher
the setting until the bass frequencies blend well between the loudspeakers and
the Klipsch powered sub. If setting the crossover point in the receiver, turn
the Lowpass Filter knob on the subwoofer to the farthest point right (150Hz).

Phase: The Klipsch SW-310 powered subwoofer has an
adjustable phase control which can be set between 0° and 180°. This control is
used to acoustically match the subwoofer's output to your system's main
speakers. Select a position between 0° and 180°, in which the subwoofer has more
output at your main listening position.

Power Auto/On/Off: The Klipsch powered subwoofer features a
3-way power switch. This is the main AC power switch for the subwoofer. This
switch must be in the "On" position for the subwoofer to operate or the "Auto"
position for the Auto-On feature to function. Set this switch to the "Off"
position if the subwoofer will not be used for an extended period of time. When
this switch is in the "Auto" position, the subwoofer will automatically turn on
when it senses a signal. It will automatically turn off after 20 minutes with no
signal.

Connections

Line-Level Input: The Klipsch SW-310 powered subwoofer is
equipped with a pair of line-level RCA-type inputs. Most of today's AV receivers
have a line-level subwoofer output (LFE) labeled Subwoofer Pre Out, Sub Out, or
SW Out. If your receiver has this output, connect on end of a subwoofer cable to
it and connect the other end of the cable into the powered subwoofer's
line-level input labeled "LEFT/LFE". This connection allows the subwoofer to
operate with both music and surround sound movies. In absence of a subwoofer (LFE)
output on your receiver, as an alternative hookup, you can connect Left & Right
channel pre-amp outputs from a receiver to the "Left/LFE" and "Right" input on
the powered subwoofer.

WA Port (optional): The Klipsch powered subwoofer is fitted
with a proprietary 4-pin "WA-Port" connector for wireless operation, using
Klipsch's optional WA-2 wireless subwoofer kit (714WA2,
sold separately). The Klipsch WA-2 wireless subwoofer kit consists of two
components; a wireless Transmitter & wireless Receiver. The WA-2 wireless
subwoofer kit makes adding the Klipsch powered subwoofer to your home theater
system much easier, because it replaces the need for a separate subwoofer cable
that traditionally must be connected between the receiver and the powered sub.
Now, you can easily place your powered subwoofer where it both sounds and looks
best in the room since you're not restricted by an audio cable.

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